Malicious PDF — malware analysis report

Static analysis result for SHA-256 e881bc1308314e0c…

MALICIOUS

PDF

186.8 KB Created: 2015-07-24 11:42:05 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 29a6cc6f3d7501669eb5e7da42afd663 SHA-1: a77d772626c6133d4a9d0e07f0193d57fb16c31e SHA-256: e881bc1308314e0c52328be20cda68861aa6b149d0fae34cf1909e32af0e2516
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. This indicates the document is likely a lure to redirect users to a malicious website for phishing or malware distribution. No scripts were extracted, and the document body was not readable, limiting further analysis of the specific content. The primary IOC is the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 2

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://botcraftman.ru/?lip&keyword=%D0%9F%D1%80%D0%B8%D0%BC%D0%B5%D1%80+%D0%B7%D0%B0%D0%BF%D0%BE%D0%BB%D0%BD%D0%B5%D0%BD%D0%B8%D1%8F+%D1%81%D0%B5%D1%81%D1%82%D1%80%D0%B8%D0%BD%D1%81%D0%BA%D0%BE%D0%B9+%D0%B8%D1%81%D1%82%D0%BE%D1%80%D0%B8%D0%B8+%D0%B1%D0%BE%D0%BB%D0%B5%D0%B7%D0%BD%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191463_skachat_yemulyator_ps3_dlya_pc.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187946_fifa_13_skachat_torrent_pc_polnaya_versiya_besplatno_na_russkom.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185554_mac_os_x_109_skachat_torrent_iso.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024721.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24721 3556 bytes
font_01_sfnt_off000254a4.bin
402bf188350a98111ffa67661a9722bc9b970e5814464f20117ffd2eeb3ccee5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x254A4 15224 bytes
font_02_sfnt_off00028362.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28362 14468 bytes
font_03_sfnt_off0002ae15.bin
2fcbf940e923844d9a30d8be9f28331ba2af3582c159b5428940d551a407e98d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AE15 6724 bytes
font_04_sfnt_off0002c144.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C144 6084 bytes
font_05_sfnt_off0002d0d9.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D0D9 3752 bytes

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